Alex Rodriguez's Sister Calls Jennifer Lopez Her Sister-in-Law in These Girls' Day Out Pics

The 47-year-old Shades of Blue star was hanging out with her new boo Alex Rodriguez's sister, Susy Dunand, on Friday. Dunand shared pics on her Instagram from her day out with Lopez and a friend. ""Any given Friday! #miscuñis!" A-Rod's hermana captioned the pic. Cuñis is short for cuñada, meaning sis-in-law.

In a second selfie with the Puerto Rican superstar, Dunand calls Lopez "simply sweet."

J.Lo and Rodriguez have been dating for several weeks and most recently vacationed in the Bahamas together where she snapped a selfie of the pair in bed together, sharing it on her Instagram stories before quickly deleting it.